Pseudonymity is not anonymity. Pseudonymity is not giving your real name (instead, a code name or stage name), but you maintain it over time and develop a reputation on it. It provides accountability, but it’s also a shield against character assassination. Freedom of speech + freedom after speech.
Example: Elliot Alderson, Satoshi Nakamoto
Balaji Srinivasan on Pseudonymous Economy:
If your bank account is your stored wealth, your real name is your stored reputation. One strategy to safeguard your reputation is to diversify it: earn under one name, speak under another, and use your real name only on official forms such as government visas or similar.